/Engine/Plugins/Importers/USDImporter/Source/USDStageImporter/Public/Widgets/SUSDStagePreviewTree.h
Custom row so that we can fetch the owningSUsdStagePreviewTreefrom the columns.
class SUsdStagePreviewTreeRow : public [SUsdTreeRow< FUsdPrimPreviewModelViewRef >](API\Plugins\USDStageImporter\Widgets\SUsdTreeRow)